Just this morning, as soon as I woke i could recall most of one dream, but no others, and after I'd written it down, I remembered another I'd had the same night.

I don't think laziness or motivation cause the delay. I had pretty strong recall this morning. I let myself remember it slowly and carefully. Often when I strain to recall my dreams I'm left with totally different scenarios, which are probably composed of different dreams, but don't really know if they are parts of different dreams or if they're all one dream that I've forgotten how they were connected.